+int usage_data_bin2hex(){
+ PrintAndLog("Usage: data bin2hex <binary_digits>");
+ PrintAndLog(" This function will ignore all characters not 1 or 0 (but stop reading on whitespace)");
+ return 0;
+}
+
+/**
+ * @brief Utility for conversion via cmdline.
+ * @param Cmd
+ * @return
+ */
+int Cmdbin2hex(const char *Cmd)
+{
+ int bg =0, en =0;
+ if(param_getptr(Cmd, &bg, &en, 0))
+ {
+ return usage_data_bin2hex();
+ }
+ //Number of digits supplied as argument
+ size_t length = en - bg +1;
+ size_t bytelen = (length+7) / 8;
+ uint8_t* arr = (uint8_t *) malloc(bytelen);
+ memset(arr, 0, bytelen);
+ BitstreamOut bout = { arr, 0, 0 };
+
+ for(; bg <= en ;bg++)
+ {
+ char c = Cmd[bg];
+ if( c == '1') pushBit(&bout, 1);
+ else if( c == '0') pushBit(&bout, 0);
+ else PrintAndLog("Ignoring '%c'", c);
+ }
+
+ if(bout.numbits % 8 != 0)
+ {
+ printf("[padded with %d zeroes]\n", 8-(bout.numbits % 8));
+ }
+
+ //Uses printf instead of PrintAndLog since the latter
+ // adds linebreaks to each printout - this way was more convenient since we don't have to
+ // allocate a string and write to that first...
+ for(size_t x = 0; x < bytelen ; x++)
+ {
+ printf("%02X", arr[x]);
+ }
+ printf("\n");
+ free(arr);
+ return 0;
+}
+
+int usage_data_hex2bin(){
+ PrintAndLog("Usage: data hex2bin <hex_digits>");
+ PrintAndLog(" This function will ignore all non-hexadecimal characters (but stop reading on whitespace)");
+ return 0;
+}
+
+int Cmdhex2bin(const char *Cmd)
+{
+ int bg =0, en =0;
+ if(param_getptr(Cmd, &bg, &en, 0)) return usage_data_hex2bin();
+
+ while(bg <= en )
+ {
+ char x = Cmd[bg++];
+ // capitalize
+ if (x >= 'a' && x <= 'f')
+ x -= 32;
+ // convert to numeric value
+ if (x >= '0' && x <= '9')
+ x -= '0';
+ else if (x >= 'A' && x <= 'F')
+ x -= 'A' - 10;
+ else
+ continue;
+
+ //Uses printf instead of PrintAndLog since the latter
+ // adds linebreaks to each printout - this way was more convenient since we don't have to
+ // allocate a string and write to that first...
+
+ for(int i= 0 ; i < 4 ; ++i)
+ printf("%d",(x >> (3 - i)) & 1);
+ }
+ printf("\n");
+
+ return 0;
+}
+
projects / proxmark3-svn / blobdiff